121210102103 has 2 divisors, whose sum is σ = 121210102104. Its totient is φ = 121210102102.

The previous prime is 121210102009. The next prime is 121210102109. The reversal of 121210102103 is 301201012121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121210102103 - 2¹⁰ = 121210101079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121210102109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605051051 + 60605051052.

It is an arithmetic number, because the mean of its divisors is an integer number (60605051052).

Almost surely, 2^121210102103 is an apocalyptic number.

121210102103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210102103 is an equidigital number, since it uses as much as digits as its factorization.

121210102103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121210102103 its reverse (301201012121), we get a palindrome (422411114224).

The spelling of 121210102103 in words is "one hundred twenty-one billion, two hundred ten million, one hundred two thousand, one hundred three".